CN1343795A - V2O3 electro-aluminothermic process for semelting FeV50 - Google Patents
V2O3 electro-aluminothermic process for semelting FeV50 Download PDFInfo
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- CN1343795A CN1343795A CN 00116108 CN00116108A CN1343795A CN 1343795 A CN1343795 A CN 1343795A CN 00116108 CN00116108 CN 00116108 CN 00116108 A CN00116108 A CN 00116108A CN 1343795 A CN1343795 A CN 1343795A
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Abstract
A technology for smelting FeV50 by electro-aluminothermic method includes mixing V2O3, aluminium powder, iron particles and lime, smelting in electric furnace, separating out slags, quenching in water, crushing, breaking, and sieving. Its advantages include high recovery rate of V (more than 94.5%), low electric consumption, and high output.
Description
The invention belongs to the vanadium metallurgical technology field, be specifically related to V
2O
3Electro-aluminothermic process is smelted FeV
50Technology.
Vanadium iron is a kind of important alloy addition, and its smelting process has carbothermy, silicothermic process and thermite process, and the carbothermy cost is lower, but product carbon containing height, many steel grades can't use; Though the silicothermic process cost is low, be difficult to production higher-grade vanadium iron; Thermite process is mainly V
2O
5Produce FeV with aluminium and ferric oxide generation thermite reaction
50The vanadium iron of energy production higher-grade, little carbon, but exist the reaction thermal value excessive, complex process, consumption aluminium is many, the defective that cost is higher.
The object of the present invention is to provide a kind of technology simple, cost is lower, and the product carbon content is low, the V that vanadium recovery is high
2O
3Electro-aluminothermic process is smelted FeV
50Technology.
V of the present invention
2O
3Electro-aluminothermic process is smelted FeV
50Technology, its raw material is by V
2O
3, aluminium powder, abrasive grit and lime consists of, wherein the aluminium powder amount of allocating into is (108%-112%) * V
2O
3The amount of allocating into * (1-V
2O
3Middle TV content) * 1.125, the abrasive grit amount of allocating into is (100%-105%) * 0.82*0.95*V
2O
3The amount of allocating into * V
2O
3Middle TV content, CaO content accounts for 18-22% to the lime amount of allocating in the slag in order to make; Technical process is with V
2O
3, aluminium powder, abrasive grit and lime carries out batch mixing, puts into then electric furnace smelting, will smelt the alloy mixture that the cast of coming out of the stove, and alloy carried out shrend after isolating slag, carry out at last break-iron, fragmentation, screening, packing and process and namely obtain finished product.
The V of raw material described in the technique scheme
2O
3In TV content be less than or equal to 0.05%, P content more than or equal to 63%, C content and be less than or equal to 0.03%, S content and be less than or equal to 0.03%, K
2O and Na
2The content sum of O is less than or equal to 1.5%, and bulk density is more than or equal to 1.0g/cm
3Al content is less than or equal to 0.2%, Si content more than or equal to 99.22%, Fe content and is less than or equal to 0.13%, Cu content and is less than or equal to 0.01% in the aluminium powder; The abrasive grit granularity is the 3-25 millimeter; CaO content is less than or equal to 5%, SiO more than or equal to 85%MgO content in the lime
2Content is less than or equal to 3.5%, P content and is less than or equal to 0.03%, S content and is less than or equal to 0.15%.
When smelting in the described technological process of technique scheme, in stove, add the mixed furnace charge of part earlier and make bed material, again at its shop, surface small amount of Fe V
50The striking material, electrode falls then, with the lowest power starting the arc of switching on, after treating that bed material reacts completely and forms the molten bath, add furnace charge again while switching on, current control is at 2-8KA, feed rate is directly proportional with the reaction severe degree, add refining lime at last, continue energising and ingot mould can be come out of the stove in 25 minutes, the ingot mould cooling after 12 hours form removal alloy is carried out processing such as shrend.
FeV of the present invention
50Smelting process uses the low oxide V of vanadium
2O
3Make raw material, can reduce the reaction caloric value, greatly reduce the consumption of expensive reducing agent aluminium, thereby greatly reduced product cost, technical process is relatively simple, and V
2O
3More easily produce, character is relatively stable, is suitable for the vanadium iron smelting process.The finished product vanadium recovery has reached more than 94.5%, and the content of V, C, Si, P, S, Al, Mn has reached the technological standard requirement.The technology power consumption is low, single stove alloy output height, and surface quality and crystalline condition are good, and the quantity of slag is few, operates simple and easyly, is easy to grasp.
Accompanying drawing is V of the present invention
2O
3Electro-aluminothermic process is smelted FeV
50Process flow sheet.
Embodiment:
Referring to accompanying drawing, raw material comprises V
2O
3, aluminium powder, abrasive grit and lime, wherein the aluminium powder amount of allocating into is (108%-112%) * V
2O
3The amount of allocating into * (1-V
2O
3Middle TV content) * 1.125, the abrasive grit amount of allocating into is (100%-105%) * 0.82*0.95*V
2O
3The amount of allocating into * V
2O
3Middle TV content, CaO content accounts for 18-22% to the lime amount of allocating in the slag in order to make; And V
2O
3In TV content be less than or equal to 0.05%, P content more than or equal to 63%, C content and be less than or equal to 0.03%, S content and be less than or equal to 0.03%, K
2O and Na
2The content sum of O is less than or equal to 1.5%, and bulk density is more than or equal to 1.0g/cm
3Al content is less than or equal to 0.2%, Si content more than or equal to 99.22%, Fe content and is less than or equal to 0.13%, Cu content and is less than or equal to 0.01% in the aluminium powder; The abrasive grit granularity is the 3-25 millimeter; CaO content is less than or equal to 5%, SiO more than or equal to 85%, MgO content in the lime
2Content is less than or equal to 3.5%, P content and is less than or equal to 0.03%, S content and is less than or equal to 0.15%.
Technological process is with V
2O
3, aluminium powder, abrasive grit and lime mixes, prepares burden, mixing time is 8 minutes, adds the mixed furnace charge of part then and make bed material in electric furnace, again at its shop, surface small amount of Fe V
50The striking material, electrode falls then, with the lowest power starting the arc of switching on, after treating that bed material reacts completely and forms the molten bath, add furnace charge again while switching on, current control is at 2-8KA, feed rate is directly proportional with the reaction severe degree, add refining lime at last, continue energising 25 minutes, after the furnace charge reaction is finished slag being come out of the stove with alloy is poured in the ingot mould, alloy promptly is deposited under the slag, ingot mould cooling was isolated slag and form removal after 12 hours, and alloy is carried out shrend, carried out break-iron, fragmentation, screening, packing at last and handled and promptly obtain finished product.
Below be four and smelt example: example 1:
Example 2:
Example 3:
Example 4:
| Jar number | Charge composition (Kg) | ||||||||||||||
| ??V 2O 3 | Aluminium powder | Abrasive grit | Lime | ??FeV 50 | Regenerant | ????TV???????C?????P?????S(％) | |||||||||
| ??092 | ??800 | ??360 | ??422 | ??200 | ????140 | ????63.8????0.01??0.04????0.01 | |||||||||
| ??085 | ??800 | ??362 | ??420 | ??200 | ????140 | ????63.7????0.01??0.04????0.01 | |||||||||
| Striking | ????100 | Mixing time 8 minutes/jar | |||||||||||||
| Refining | ???60 | ||||||||||||||
| Add up to | ?1600 | ??722 | ?842 | ??460 | ????100 | ????280 | |||||||||
| Secondary voltage (V) | Flame current (A) | Delivery rate (Kg/ branch) | The feed time (branch) | Conduction time (branch) | |||||||||||
| ????135 | ??2000-7000 | ????54-225 | ????28 | ????65 | |||||||||||
| Finished product (Kg) | ????V | ????C | ??Si | ????P | ????S | ????Al | ????Mn | Vanadium recovery (%) | |||||||
| ??54.8 | ??0.32 | ??0.7 | ??0.05 | ??0.02 | ????0.2 | ????0.45 | ????95.55 | ||||||||
| Jar number | Charge composition (Kg) | ||||||
| ??V 2O 3 | Aluminium powder | Abrasive grit | Lime | ??FeV 50 | Regenerant | ????TV?????C?????P??????S(％) | |
| ??111 | ??800 | ??363 | ??425 | ??200 | ????140 | ????63.6??0.01??0.06????0.02 | |
| ??072 | ??800 | ??357 | ??417 | ??200 | ????140 | ????64.0??0.01??0.04????0.01 | |
| Striking | ????100 | Mixing time 8 minutes/jar | |||||||||||||||
| Refining | ??60 | ||||||||||||||||
| Add up to | 1600 | ?720 | ?842 | ?460 | ????100 | ????280 | |||||||||||
| Secondary voltage (V) | Flame current (A) | Delivery rate (Kg/ branch) | The feed time (branch) | Conduction time (branch) | |||||||||||||
| ????135 | ?3000-8000 | ????78-201 | ????34 | ????68 | |||||||||||||
| Finished product (Kg) | ??V | ??C | ??Si | ????P | ????S | ????Al | ????Mn | Vanadium recovery (%) | |||||||||
| ??55.5 | ??0.40 | ??0.7 | ??0.06 | ??0.04 | ????0.2 | ????0.47 | ????94.47 | ||||||||||
| Jar number | Charge composition (Kg) | ||||||||||||||
| ??V 2O 3 | Aluminium powder | Abrasive grit | Lime | ??FeV 50 | Regenerant | ????TV?????C??????P??????S(％) | |||||||||
| ??070 | ??800 | ??350 | ??200 | ??180 | ????140 | ????64.5???0.01??0.01????0.03 | |||||||||
| ??040 | ??800 | ??358 | ??200 | ??180 | ????140 | ????64.1???0.01??0.01????0.03 | |||||||||
| Striking | ????100 | Mixing time 8 minutes/jar | |||||||||||||
| Refining | ?400 | ??60 | |||||||||||||
| Add up to | 1600 | ?708 | ?800 | ?420 | ????100 | ????280 | |||||||||
| Secondary voltage (V) | Flame current (A) | Delivery rate (Kg/ branch) | The feed time (branch) | Conduction time (branch) | |||||||||||
| ????135 | ????3000-8000 | ????72-204 | ????30 | ????75 | |||||||||||
| Finished product (Kg) | ????V | ????C | ??Si | ????P | ????S | ????Al | ????Mn | Vanadium recovery (%) | |||||||
| ??56.0 | ??0.28 | ??0.6 | ??0.04 | ??0.04 | ????0.3 | ????0.40 | ????94.62 | ||||||||
| Jar number | Charge composition (Kg) | |||||||||||||||
| ??V 2O 3 | Aluminium powder | Abrasive grit | Lime | ??FeV 50 | Regenerant | ????TV?????C??????P??????S(％) | ||||||||||
| ??094 | ??800 | ??360 | ??200 | ??180 | ????140 | ????63.6???0.05??0.01????0.03 | ||||||||||
| ??028 | ??800 | ??356 | ??190 | ??180 | ????140 | ????63.9???0.05??0.01????0.03 | ||||||||||
| Striking | ????60 | Mixing time 8 minutes/jar | ||||||||||||||
| Refining | ??400 | ?60 | ||||||||||||||
| Add up to | ?1600 | ?716 | ?790 | ??420 | ????60 | ?????280 | ||||||||||
| Secondary voltage (V) | Flame current (A) | Delivery rate (Kg/ branch) | The feed time (branch) | Conduction time (branch) | ||||||||||||
| ????135 | ????3000-8000 | ????69-162 | ????34 | ????85 | ||||||||||||
| Finished product (Kg) | ??V | ??C | ??Si | ????P | ????S | ????Al | ????Mn | Vanadium recovery (%) | ||||||||
| ??57.3 | ??0.40 | ??0.7 | ??0.05 | ??0.03 | ????0.2 | ????0.43 | ????94.73 | |||||||||
Claims (3)
1.V
2O
3Electro-aluminothermic process is smelted FeV
50Technology is characterized in that: raw material is by V
2O
3, aluminium powder, abrasive grit and lime consists of, wherein the aluminium powder amount of allocating into is (108%-112%) * V
2O
3The amount of allocating into * (1-V
2O
3Middle TV content) * 1.125, the abrasive grit amount of allocating into is (100%-105%) * 0.82*0.95*V
2O
3The amount of allocating into * V
2O
3Middle TV content, Ca0 content accounts for 18-22% to the lime amount of allocating in the slag in order to make; Technical process is with V
2O
3, aluminium powder, abrasive grit and lime carries out batch mixing, puts into then electric furnace smelting, will smelt the alloy mixture that the cast of coming out of the stove, and alloy carried out shrend after isolating slag, carry out at last break-iron, fragmentation, screening, packing and process and namely obtain finished product.
2. V as claimed in claim 1
2O
3Electro-aluminothermic process is smelted FeV
50Technology is characterized in that: the V of raw material
2O
3In TV content be less than or equal to 0.05%, P content more than or equal to 63%, C content and be less than or equal to 0.03%, S content and be less than or equal to 0.03%, K
2O and Na
2The content sum of O is less than or equal to 1.5%, and bulk density is more than or equal to 1.0g/cm
3Al content is less than or equal to 0.2%, Si content more than or equal to 99.22%, Fe content and is less than or equal to 0.13%, Cu content and is less than or equal to 0.01% in the aluminium powder; The abrasive grit granularity is the 3-25 millimeter; CaO content is less than or equal to 5%, SiO more than or equal to 85%, MgO content in the lime
2Content is less than or equal to 3.5%, P content and is less than or equal to 0.03%, S content and is less than or equal to 0.15%.
3. V as claimed in claim 1 or 2
2O
3Electro-aluminothermic process is smelted FeV
50Technology is characterized in that: during smelting, add the mixed furnace charge of part earlier and make bed material in stove, again at its shop, surface small amount of Fe V
50The striking material, electrode falls then, with the lowest power starting the arc of switching on, after treating that bed material reacts completely and forms the molten bath, add furnace charge again while switching on, current control is at 2-8KA, feed rate is directly proportional with the reaction severe degree, add refining lime at last, continue energising and ingot mould can be come out of the stove in 25 minutes, the ingot mould cooling after 12 hours form removal alloy is carried out processing such as shrend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001161083A CN1138864C (en) | 2000-09-21 | 2000-09-21 | V2O3 electro-aluminothermic process for semelting FeV50 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001161083A CN1138864C (en) | 2000-09-21 | 2000-09-21 | V2O3 electro-aluminothermic process for semelting FeV50 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1343795A true CN1343795A (en) | 2002-04-10 |
| CN1138864C CN1138864C (en) | 2004-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001161083A Expired - Lifetime CN1138864C (en) | 2000-09-21 | 2000-09-21 | V2O3 electro-aluminothermic process for semelting FeV50 |
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| Country | Link |
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| CN (1) | CN1138864C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962727A (en) * | 2010-11-12 | 2011-02-02 | 攀钢集团钢铁钒钛股份有限公司 | Method for preparing sigma-phase FeV50 |
| CN101724751B (en) * | 2009-12-29 | 2011-06-08 | 四川省川威集团有限公司 | Method for smelting high vanadium ferrovanadium |
| CN102586637A (en) * | 2012-03-23 | 2012-07-18 | 宁夏东方钽业股份有限公司 | Method for manufacturing multi-component niobium alloy cast ingot |
| CN103397208A (en) * | 2013-07-11 | 2013-11-20 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for smelting ferro-vanadium through electro-aluminothermic method |
| CN105018828A (en) * | 2015-08-13 | 2015-11-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation method of vanadium iron |
| CN110042238A (en) * | 2019-04-29 | 2019-07-23 | 攀钢集团攀枝花钢铁研究院有限公司 | The production method of high-quality FeV50 alloy |
| CN113265577A (en) * | 2021-04-20 | 2021-08-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing FeV50 alloy from waste iron materials in vanadium extraction from vanadium slag |
-
2000
- 2000-09-21 CN CNB001161083A patent/CN1138864C/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724751B (en) * | 2009-12-29 | 2011-06-08 | 四川省川威集团有限公司 | Method for smelting high vanadium ferrovanadium |
| CN101962727A (en) * | 2010-11-12 | 2011-02-02 | 攀钢集团钢铁钒钛股份有限公司 | Method for preparing sigma-phase FeV50 |
| CN101962727B (en) * | 2010-11-12 | 2013-01-02 | 攀钢集团钢铁钒钛股份有限公司 | Method for preparing sigma-phase FeV50 |
| CN102586637A (en) * | 2012-03-23 | 2012-07-18 | 宁夏东方钽业股份有限公司 | Method for manufacturing multi-component niobium alloy cast ingot |
| CN103397208A (en) * | 2013-07-11 | 2013-11-20 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for smelting ferro-vanadium through electro-aluminothermic method |
| CN103397208B (en) * | 2013-07-11 | 2015-04-29 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for smelting ferro-vanadium through electro-aluminothermic method |
| CN105018828A (en) * | 2015-08-13 | 2015-11-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation method of vanadium iron |
| CN105018828B (en) * | 2015-08-13 | 2017-09-08 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of preparation method of vanadium iron |
| CN110042238A (en) * | 2019-04-29 | 2019-07-23 | 攀钢集团攀枝花钢铁研究院有限公司 | The production method of high-quality FeV50 alloy |
| CN113265577A (en) * | 2021-04-20 | 2021-08-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing FeV50 alloy from waste iron materials in vanadium extraction from vanadium slag |
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|---|---|
| CN1138864C (en) | 2004-02-18 |
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Granted publication date: 20040218 |